Proportional meter.



T. B. WYLIE.

PROPORTIONAL METER.

APPLICATION FILED 1320.16, 1912.

1,076,855. Patented 0013.28, 1913.

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WITNEiSES NVENTOH 5 l D MLAE Qwmkxuu, J 1. 1 N (HEW COLUMBIA PLANOGRAPH co.. WASHINGTON, u. c

T. B. WYLIE.

PROPORTIONAL METER.

APPLIOATION FILED DEO.16, 1912.

Patented Oct. 28, 1913.

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INVENTOR Q. Q \wxht I mkt, G

WITNESSES COLUMBIA PLANOORAVH co., WASHINGTON, 0' c.

STATES PATENT OFFICE,

THOMAS n wrnrn, or rrTTsnnnon, PENNSYLVANIA, AssreNon To menses;

METER COMPANY, or rrTTsnUnen, rnNNsYLvaNra, A oonrcna'rron or PENN- SYLVANIA.

PROPORTIONAL METER.

Specification. of Letters Patent.

Patented Oct. 28, 1913.

Application filed December 16, 1912. Serial No. 736,943.

ing my invention; Fig. 2 is a horizontal SEC".

tion showing the connection between the high and low pressure plates; Fig. 3 is a plan view of a portion of the meter; and Fig. 1- is a side view of the parts shown in Fig. 3.

My invention relates to the proportional meters which are employed for determining the volume of fluid passing through a corn duit or main, wherein a portion of the fluid is passed through a tally'meter, the present invention being an improvement upon the proportional meter described and claim-ed in my Patent No. 596,953 of January 4, 1898. The meter of that patent comprises oppositely acting pressure plates connected to each other and controlling the valves for the measured and. unmeasured currents of fluid. The valve for the measured current of fluid delivered from the tally-meter was, in accordance with the construction shown in said patent, so placed with reference to the flow of the unmeasured currents of gas as to be affected by the deposit of dust or dirt carried. by the gas. lfn these meters, the opening for the meter delivery valve is made such that its ratio to the area of the opening of the direct inlet valve shall be equal to the ratio of the determined capacity of the tallymeter and the volume of fluid passing to the direct delivery, so that under all degrees of opening of the direct delivery valve and the meter delivery valve, the proportionate delivery of the meter is constantly equal to the predetermined fraction of the supply volume with which the capacity of the tallymeter accords. It is therefore of the greatest importance to so arrange the meter delivery valve that neither its operation nor the effective area of the opening controlled by the valve can be changed by reason of accumulation of dust or dirt.

My present invention is designed to provide a novel arrangement of the meter in which the meter delivery valve is exposed only to the low of the measured current of gas which has already passed through the tallymeter and has parted with most of its con tained dirt before reaching the said valve. 1 also arrange the meter delivery valve, which is preferably of a special pivoted. needle form, so that the flow of current shall be in the direction opposite the opening movement of the valve and shall sweep over the valve in a manner to free it from any accumulation of dirt.

, In the accompanying drawings, in which I have shown the preferred arrangement of my invention, the numeral 2 designates the casing of the proportional meter having an inlet opening 3 at one end and an outlet opening 4 at the opposite end. The casing is divided interiorly by a partition 5, the space at one side of said partition forming the inlet chamber and the space at the opposite side of the partition forming the delivery chamber of the meter. The partition is formed with an opening 6, controlled by a valve 7, which seats in the direction of the flow of the fluid and which constitutes the high pressure plate of the meter. This high pressure plate or valve 7 is connected with the diaphragm 8, constituting the low pressure plate of the meter, through the bell crank lever 9 and rod 10.

The numeral 11 designates the tallyuneter whose inlet side is connected bya pipe 12 with the inlet chamber of the proportional meter and whose delivery side is connected by a pipe 13 with a valve chamber 1 1-, which communicates with the outlet chamber of the proportional meter through the valvecontrolled opening 15.

16 is the meter delivery valve controlling the opening 15.

The chamber 1a is formed by a box 17, seated upon the casing 2, and having a vertical partition 18, through which the opening 15 is formed. The connection 13, lead ing from the delivery side of the tally-meter is shown as entering this box at one end and the box as having a bypass passage 19 at one side and leading around to the opposite side of the partition 18. The valve 16 is pivoted at 20, at the outer side of the partition 18, and has a tapering portion 21, which extends through and is adapted to regulate and control the opening 15. The inner end "opened.

of the valve is connected by a link 22 With the upper armof a pivoted lever 23. The lovver arm of this lever has a link 24:, connecting it with the stem of the direct inlet valve or high pressure plate 7. 7

The operation is as follows: The fluid entering at 3 passes through pipe 12 and the opened, and through the connections 22, 23' and "24," the valve '16 is proportionately Some offthe fluid new continues to flow through the tally m'eter' and the -re m ainder directly through the proportional meter. The principle of operation and the manner in which the required proportional flow of 'flUlCl through -the direct ELd1'Ii1SS1OIl valve 7 and meter delivery valve 16 1s-atall times maintained is in'all respects similar'to that of my saidpatentandneed-not here be 1 described.

meter 'delivery valve l6 placed so that it will notbe afiected by the unmeasured gas, but that it is also-arranged so that the measured gas Will fiOW past the valve in the direction opposed to the opening movement, and I will sn'eep'therefrom any dust or dirt which might tend to accumulate thereon.

I do not desire to limit myself to the =pre-' cise construction and arrangement of the parts which I have herein shown and described, as it is obvious that theymay bevar1ed in detail in numerous Ways, Without" departing from the spirit and scope of my invention, as defined in the appended claims.

I claim:

1. In a proportionalmeter, the combination with a direct inlet who arranged to close in the direction of the current-, said valve acting as a high pressure plate acted upon by the entering fluid, a diaphragmchamber containing a diaphragm forming a low pressure plate, a connection betiveenthetivoplates, a tally-meter connected at one side to the inlet side of the meter'apparatus and at the opposite side to the-delivery chamber of the meter apparatus, the last named connection also communicating, With the dia-.

hra m chamber and a valve controllin p b 7 b It will be i observed that not only is the the last named connection, said valve opening in a vdirection opposed to the flow of gas past the -valve,-substantially as described.

2. In a proportional meter,- a metercasingdividedinto inlet and delivery chambers, and a main valve controlling the communicationbetween said chambers, ofa tallymeter connected to the inlet chamber, a connectiondeading from the said delivery side of the tally-meter to the delivery chamber, a diaphragm chamber containing a diaphragm connected to the main valve, said chamber being also connected Withthe'sa-id delivery chamber of-thetally-meter, and a valve controlling; the flow of fluid from the tally-jmeter and diaphra gm chamber into the delivery'chamben said valve being connected to-the main inlet valveand -arranged to open in-a direction opposed to the fiow of-gas in said valve, substantially as described,

3. 1m proportional 'meter, a-meter casingfdiv'ided 'into inlet and delivery jcham bers,-'- main: inlet valve controlling .thecommunication between said chambers, a tally-meter connected "with the said' inlet chamber,a valve box mounted upon the case over the said delivery' chamber and communicating therewith, a connection from the delivery'sidenofthe tally-meter into said box,a valve pivoted'within said box and controlling the flow of fluid through said box into the delivery'chamber, said valve having an actuating connection-With the main inlet valve and arrangedtoopen in a direction opposed to the flow-of gas past the valve; a diaphragm chamber alsoconnected to the said box, adiaphragm therein, and a connection betweenthe diaphragm and the main inlet valve, substantially as described.

4:; A proportional meter having a delivery chamberya valve 'boX mounted thereon and communicatingtherewith, and a meter delivery valve pivoted in said box'and con trolling the flow of 'measured gas there through into the said delivery'chamber, said valve being arrangedto open in a direction opposed to the flow of gas,-and a main valve controlling thO fIOW-Of the unmeasured gas and havingan actuating connection with the meter"delivery valve, substantially as 'described;

In testimony whereof, I have hereunto set my hand THOMAS E. IVYLIE.

lVitn'esses H; M Comvm, Gno. H. PARMELEEJJ Copies ofthis patent may beobtained for five cents each, by addressing the Commissioner of Patents,

Washington, n. o. 

